Tighter constraints of multiqubit entanglement in terms of unified entropy
Abstract
We present classes of monogamy inequalities related to the α-th (α ≥ 1) power of the entanglement measure based on the unified-(q,s) entropy, and polygamy inequalities related to the β-th (0 ≤ β ≤ 1) power of the unified-(q,s) entanglement of assistance by using Hamming weight. We show that these monogamy and polygamy inequalities are tighter than the existing ones. Detailed examples are given for illustrating the advantages.
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